const arr = [
	2345, 2983, 1984, 1439, 892, 598,
	1980, 1753, 1520, 1826, 720, 652,
	2793, 2163, 832, 1164, 1042, 549,
]

const data = Array(6).fill(0).map((_, index) => {
	return [arr[index], arr[index + 6 * 1], arr[index + 6 * 2]];
});

const str = JSON.stringify(data)
console.log(str)
